All-SWC defensive lineman on Arkansas' 1964 national championship team; coached Miami-FL to national title in 1987; college record of 81-34-3 in 10 years; hired by old friend and new Dallas owner Jerry Jones to succeed Tom Landry in 1989; went 1-15 in '89, then led Cowboys to consecutive Super Bowl victories in 1992 and '93 seasons; quit in 1994 after feuding with Jones; became TV analyst; replaced Don Shula as Miami Dolphins head coach from 1996-99.